SearXNG-Crawl4AI MCP Server
Provides fast, self-hosted web search and reliable web scraping using SearXNG and Crawl4AI, integrated as MCP tools for Claude Code.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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luxiaolei
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig
Axios is vulnerable to DoS attack through lack of data size check
CRAWL4AI_URLhttp://localhost:8001FIRECRAWL_API_KEYFIRECRAWL_API_URLLOG_LEVELPROXY_URLNoneSEARXNG_URLhttp://localhost:8081Dependencies
14 runtime dependencies (11 dev), 2 flagged: playwright, puppeteer
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
9/9 tools missing one or more hints — scrape_url (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); batch_scrape (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); crawl_website (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Production dependencies are patched
0 critical, 13 high severity in production deps — @modelcontextprotocol/sdk@0.5.0 (high), axios@1.11.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dependency freshness
1/14 production deps stale: node-fetch@2023-11-30 (2.8y)
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